From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7FCFE110C for ; Fri, 2 Dec 2022 18:42:27 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 330E3C433D7; Fri, 2 Dec 2022 18:42:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1670006547; bh=K2zib8Hc9mCnFY+1mgNyBxNAnfk1wkzyLpgwX1nLU70=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=SPUvaFgctq+m5wUNdyG7x104v0JFynuNnjbh0mmh6dplUBUxPuScYANxr8xYggG8H SkPUcAh4oWXX7kjwCKw9VHl4/a2I4mVs63m9ceqqqC13LkKIxSszpCBIr/BTzW25Xr bgM8abCCW7GKNvhaMewtIF15nq3lLZmBIYX6JKYXtOMyyF5NRPsgYGvTW+WRGScz1r EopToK0DMvETrsvBnQgWZHzuZEKAzX3q6tvUlLTmznCmbnnnIMT0vJP5MdCSgHJ6/o Yi+5qPeTZ20ZquxHXDj3wYdYHFZfAjb87maQodcFov3GU3iV6VloakJ5C4yMqdN/G3 Tux4BXCAfqReA== Received: from 51-171-6-54-dynamic.agg9.chf.chf-qkr.eircom.net ([51.171.6.54] helo=wait-a-minute.misterjones.org) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1p1AzQ-00A9EX-QO; Fri, 02 Dec 2022 18:42:25 +0000 Date: Fri, 02 Dec 2022 18:42:20 +0000 Message-ID: <87edthtzoz.wl-maz@kernel.org> From: Marc Zyngier To: Mark Brown Cc: Catalin Marinas , Will Deacon , Lorenzo Pieralisi , Mark Rutland , Sami Mujawar , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev Subject: Re: [PATCH v2 00/14] arm64/nmi: Support for FEAT_NMI In-Reply-To: <20221112151708.175147-1-broonie@kernel.org> References: <20221112151708.175147-1-broonie@kernel.org> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/27.1 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) Precedence: bulk X-Mailing-List: kvmarm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-SA-Exim-Connect-IP: 51.171.6.54 X-SA-Exim-Rcpt-To: broonie@kernel.org, catalin.marinas@arm.com, will@kernel.org, lpieralisi@kernel.org, mark.rutland@arm.com, Sami.Mujawar@arm.com, tglx@linutronix.de, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false On Sat, 12 Nov 2022 15:16:54 +0000, Mark Brown wrote: > > This series enables the architecture and GIC support for the arm64 > FEAT_NMI and FEAT_GICv3_NMI extensions in host kernels. These introduce > support for a new category of interrupts in the architecture code which > we can use to provide NMI like functionality, though the interrupts are > in fact maskable as the name would not imply. The GIC support was done > by Loreozo Pieralisi. FWIW, I have stashed a rework of my 2 year old vgic NMI series at [1]. It hasn't broken non-NMI behaviour in my early testing, but my FVP is out of commission for the time being. What could possibly go wrong? M. [1] https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git/log/?h=arm64/nmi -- Without deviation from the norm, progress is not possible.